When you open a presentation from OneDrive for work or school or SharePoint directly or through a shared link with a Microsoft work or school account, PowerPoint for the web displays the file …

You can change the format of your slides and then apply the changes to your entire presentation.

If you receive or open a presentation file and can't make any changes, it might be Open for viewing only in Protected View. Follow these steps to edit: Go to File > Info. Select Protect …

Learn about co-authoring and editing PowerPoint presentations at the same time as other people and how to resolve conflicting changes in PowerPoint.

To apply a design or theme-based colors, fonts, effects and backgrounds, see Create your own theme in PowerPoint. To set the page orientation for all of the slides in your presentation, on …

Learn how to change data on an embedded or linked chart in your PowerPoint presentations.

In video or audio that you've added to a PowerPoint slide, you can trim away unwanted content at the beginning or end of the clip, or both. You can only trim videos that you've inserted from …

Learn how to design professional-looking presentations with Microsoft 365. Create high quality, customized slides in a few clicks with PowerPoint Designer.

Select Open to bring it up in PowerPoint for the web. If you don't see the open option, select the horizontal … or vertical ⋮ ellipsis and choose Downloads.

In PowerPoint, you can create your own theme to use in your presentations using the fonts, colors, effects, and layouts that you prefer.